Paste your CSS code and compress it by removing whitespace, comments, and redundant properties. See the original vs minified size with compression ratio. Copy the minified output with one click. Essential for optimizing website performance.
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Workspace
Use the tool below. Your inputs stay local when the tool supports browser-only processing.
Copy your CSS code from your project and paste it into the input area. This CSS minifier tool accepts any valid CSS including media queries, animations, and complex selectors, then compresses it by removing all unnecessary characters.
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View the Minified Output
The minified version appears instantly with all unnecessary whitespace, comments, and redundant properties removed. The CSS minifier displays the compression ratio so you can see exactly how much file size you saved for your production stylesheet.
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Copy and Deploy
Click the copy button to grab the minified CSS and paste it into your production stylesheet. Minifying with this CSS minifier tool reduces page load times and improves website performance scores with minimal effort.
CSS Minifier — Frequently Asked Questions
How much can a CSS minifier improve page load speed?
A CSS minifier typically reduces file size by 30% to 60%, depending on how much whitespace, comments, and redundant code your original stylesheet contains. This translates directly to faster page load times, especially on slower network connections where every kilobyte matters.
Does CSS minification from a CSS minifier tool change how my styles render?
No, a CSS minifier only removes unnecessary characters like spaces, line breaks, and comments without changing any property values, selectors, or functionality. Your styles render identically to the original unminified version after using a CSS minifier.